<template>
    <div>
        <!-- 面包屑 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>数据统计</el-breadcrumb-item>
            <el-breadcrumb-item>数据报表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 卡片视图 -->
        <el-card>
            <!-- 图表 -->
            <div id="main" style="width: 850px;height:400px;"></div>
        </el-card>
    </div>
</template>

<script>
// 导入echarts
import * as echarts from 'echarts'
import _ from 'lodash'
export default {
    name: 'Re-port',

    data() {
      return {
        // 需要合并的数据
        options: {
            title: {
              text: '用户来源'
            },
            tooltip: {
              trigger: 'axis',
              axisPointer: {
                type: 'cross',
                label: {
                  backgroundColor: '#E9EEF3'
                }
              }
            },
            grid: {
              left: '3%',
              right: '4%',
              bottom: '3%',
              containLabel: true
            },
            xAxis: [
              {
                boundaryGap: false
              }
            ],
            yAxis: [
              {
                type: 'value'
              }
            ]
        }
      };
    },
    // 页面dom元素被渲染完毕
    async mounted() {
        // 基于准备好的dom，初始化echarts实例
        var myChart = echarts.init(document.getElementById('main'));
        const {data:res} = await this.$http.get('reports/type/1');
        if(res.meta.status !== 200){
          return this.$message.error('获取数据失败');
        }

        // 准备数据配置项
        const result =  _.merge(res.data,this.options);
        
        // 使用刚指定的配置项和数据显示图表。
        myChart.setOption(result);
    },

    methods: {
        
    },
};
</script>

<style lang="less" scoped>
.el-card{
  width: 100%;
  display: flex;
  justify-content: left;
}
</style>